Improvement in locking-latches



J. DRUCKLI E B.

LOOKING-LATCH. No.170,353. Patented Nov.23,1875.

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the inner surface of the lockcase.

: rrnn STATES PATENT OFFICE.

JULIUS DRUOKLIEB, OF JERSEY CITY HEIGHTS, NEW JERSEY.

IMPROVEMENT IN LOCKlNG-LATCHES.

Specification forming part of Letters Patent No. 170,353, dated November23, 1875 application filed April 29,1875.

To all whom it may concern:

Be it known that I, JULIUS DRUOKLIEB, of Jersey UityHeights, in thecounty of Budson and State .of New Jersey, have invented a certain newand useful Improvement in Latch-Locks, of which the following is aspecification This invention is illustrated in the accompanyin gdrawing, in which- Figure 1 represents an inside view of the lockingmechanism, when the bolt acts as a latch. Fig. 2 isa similar view of thesame when the bolt is thrown forward in its locking position.

Similarletters indicate correspondin g parts.

This invention consists in the combination of a tumbler, tumbler-spring,latch-bolt, key and armed hub, the tumbler being connected to the latchby a notched slot, while the latch is provided with a recess to engagewith the key in such a manner that the tumbler and the latch-bolt aresubjected to the'action-ot' the same spring, and that when the armed hubis turned, it acts through the tumbler on the latch-bolt, while byturning the key the latchbolt can be thrown forward in its lockingposition independent of the tumbler.

- In the drawing, the letter A designates the case of my lock, in whichmoves the latch-bolt B, said case being provided with two or more lugs,a, which form the guides for the tail of the latch-bolt.

From the face of the tail of the latch-bolt projects a stud, b, whichengages withrecesses a c 111 a slot, cl, formed in the body of thetumbler G. This tumbler is placed on the top of the latch-bolt, and itis held down by the back plate of the lock-case (not shown in thedrawing.) The rear end of said tumbler is constructed with two arms, soas to straddle or have interposed between them the hub D, the arms ofwhich act on downwardly-projectinglips e of the tumbler, which lips bearupon A spring, E, bears upon the rear edge of one of the arms of thetumbler and presses the same forward against a stud, F, which rises fromthe inner surface of the case A.

In the lower edge of the tail of the latchbolt is a recess, g, to engagewith the key K, and the lower edge of the tumbler is rounded, so thatwhen the latch-bolt is in the position shown in Fig. 1, and the key isturned from I left to right, the recess 0 of the tumbler is first raisedup from the stud b, then the latchbolt is thrown forward to the positionshown in Fig. 2, and finally the recess 0 of the tumbler drops in gearwith the stud b. By this I110- tion the latch-bolt is thrown in itslocking position, and the door or other device to which my lock isattached cannot be opened without the key. But if the latch-bolt ismoved to the position shown in Fig. 1, it can be moved in and out by theaction of the armed hub .D on the tumbler O, and the door or otherdevice to which my lock is attached can be opened by turning the armedhub.

The simplicity of this look is unsurpassed.

Its locking mechanism consists of the'latch bolt, the tumbler, the armedhub, a single spring, and the key, and the latch-bolt. The tumbler, andthe armed hub can be cast ready to be inserted in their places, so thatvery little labor is required to complete my lock.

What I claim as new, and desire to secure by Letters Patent, is

The combination of the latch-bolt, having the stud b and recess g, withthe two-armed tumbler O, constructed with recesses c 0, to

receive the stud b, and with lips e, for engaging with the arms of thehub D, and the spring E, arranged to act directly upon one of thetumbler-arms, so as to throw out the bolt and hold-the tumbler inposition, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand andseal this 26th day of April, 1875.

JULIUS DRUOKLIEB.

Witnesses:

W. HAUFF, E. F. KASTENHUBER.

